Eye on Blades Blog: Trends in Infrastructure
Get HP BladeSystem news, upcoming event information, technology trends, and product information to stay up to date with what is happening in the world of blades.

Ever have the issue of having the EEPROM fail on a blade enclosure?

I had a Blade Specialist ask what happens when the EEPROM fails on the BladeSystem Enclosure.


First of all, just what does the EEPROM do for the blade enclosure.

The c-Class Architecture documents on the mid-plane says as the following.

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00810839/c00810839.pdf
"The only active device is an Electrically Erasable Programmable Read-Only Memory (EEPROM), which the Onboard Administrator uses to acquire information such as the midplane serial number. If this device were to fail, it would not affect the signaling functionality of the NonStop signal midplane."

Question:
Does this mean the blade server and interconnect device will have no problem and keep running even if the EEPROM fails and the information on this device is completedly lost ?

Answer:
When and if the EEPROM fails, it fails "safe" and results in no loss of functionality. It is not in the signal path of anything. It is 'active' in the sense that it is a powered device, but its activities are completely passive, basically to contain information that the OA can query about serial number as stated below and some Field Replaceable Unit information.

Does OA work fine continuously ?     YES
Does Blade server "Boot" normally ? YES
Does iLO access work fine ?            YES
Is the Virtual Connect profile still applicable ?           YES

Search
Follow Us


About the Author(s)
  • More than 25 years in the IT industry developing and managing marketing programs. Focused in emerging technologies like Virtualization, cloud and big data.
  • I work within EMEA ISS Central team and a launch manager for new products and general communications manager for EMEA ISS specific information.
  • Hello! I am a social media manager for servers, so my posts will be geared towards HP server-related news & info.
  • HP Servers, Converged Infrastructure, Converged Systems and ExpertOne
  • WW responsibility for development of ROI and TCO tools for the entire ISS portfolio. Technical expertise with a financial spin to help IT show the business value of their projects.
  • I am a member of the HP BladeSystem Portfolio Marketing team, so my posts will focus on all things blades and blade infrastructure. Enjoy!
  • Luke Oda is a member of the HP's BCS Marketing team. With a primary focus on marketing programs that support HP's BCS portfolio. His interests include all things mission-critical and the continuing innovation that HP demonstrates across the globe.
  • Global Marketing Manager with 15 years experience in the high-tech industry.
  • Network industry experience for more than 20 years - Data Center, Voice over IP, security, remote access, routing, switching and wireless, with companies such as HP, Cisco, Juniper Networks and Novell.
  • 20 years of marketing experience in semiconductors, networking and servers. Focused on HP BladeSystem networking supporting Virtual Connect, interconnects and network adapters.
  • Greetings! I am on the HP Enterprise Group marketing team. Topics I am interested in include Converged Infrastructure, Converged Systems and Management, and HP BladeSystem.
Labels